1 /*
   2  * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 import java.util.ArrayList;
  26 
  27 import jdk.test.lib.cds.CDSTestUtils;
  28 import jdk.test.lib.cds.CDSOptions;
  29 import jdk.test.lib.process.OutputAnalyzer;
  30 
  31 /*
  32  * @test
  33  * @summary Try to archive lots of classes by searching for classes from the jrt:/ file system. With JDK 12
  34  *          this will produce an archive with over 30,000 classes.
  35  * @requires vm.cds
  36  * @library /test/lib /test/hotspot/jtreg/runtime/appcds
  37  * @run driver/timeout=500 LotsOfClasses
  38  */
  39 
  40 public class LotsOfClasses {
  41 
  42     public static void main(String[] args) throws Throwable {
  43         ArrayList<String> list = new ArrayList<>();
  44         TestCommon.findAllClasses(list);
  45 
  46         CDSOptions opts = new CDSOptions();
  47         opts.setClassList(list);
  48         opts.addSuffix("--add-modules");
  49         opts.addSuffix("ALL-SYSTEM");
  50         opts.addSuffix("-Xlog:hashtables");
  51         opts.addSuffix("-Xmx500m");
  52         opts.addSuffix("-Xlog:gc+region+cds");
  53         opts.addSuffix("-Xlog:gc+region=trace");
  54 
  55         OutputAnalyzer out = CDSTestUtils.createArchive(opts);
  56         CDSTestUtils.checkDump(out);
  57     }
  58 }